From:
Obfuscated C Code
We find:
http://www.cise.ufl.edu/~manuel/obfuscate/pi.c
To check the output online:
C code - 21 lines - codepad
Yes, the program as it is pasted there gives a poor approximation, however... the accuracy of the calculation increases as the circle diameter is increased. I've stared at this for a little while but can't seem to make sense of what's actually going on, do any of you have insight in to the program flow and what the statements are executing?
The International Obfuscated C Code Contest
Find the entry, read the notes.
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
If at first you don't succeed, try writing your phone number on the exam paper.
I'm not much for math, but the flow of this is pretty straight forward I think. The pattern of the shape is irrelevent, of course. Look at the #define _Originally Posted by since
C programming resources:
GNU C Function and Macro Index -- glibc reference manual
The C Book -- nice online learner guide
Current ISO draft standard
CCAN -- new CPAN like open source library repository
3 (different) GNU debugger tutorials: #1 -- #2 -- #3
cpwiki -- our wiki on sourceforge
Never mind, explanations are starting to finally show up here;
http://www.reddit.com/r/programming/...beautiful_way/
I had all of it but the punchline:
So F gets decremented 202 times, but OO only 16.It's F>0 for the first _ of each line, -F for each _ after that.
C programming resources:
GNU C Function and Macro Index -- glibc reference manual
The C Book -- nice online learner guide
Current ISO draft standard
CCAN -- new CPAN like open source library repository
3 (different) GNU debugger tutorials: #1 -- #2 -- #3
cpwiki -- our wiki on sourceforge
It's a shame however the shape doesn't actually represent a circle. In the end it cheats.
Still, nicely done. I couldn't see it, until I read how it was done.
Originally Posted by brewbuck:
Reimplementing a large system in another language to get a 25% performance boost is nonsense. It would be cheaper to just get a computer which is 25% faster.
